JPH08142804A - Wiper rubber - Google Patents

Abstract

PURPOSE: To provide wiper rubber which can improve the wiping efficiency of the wiper rubber having two edge parts. CONSTITUTION: A pipe part 2 having a hollow part 2a therein is set between a base part 1 and edge parts 3a, 3b engaged with a wiper blade, respectively, and passing holes 2b are opened, at predetermined intervals, in the pipe part 2 positioned between the edge parts 3a, 3b. Hereby, airflow in a certain direction is generated in the hollow part 2a in wiper rubber by travelling of a vehicle so that a water content 6 stagnated between the edge parts 3a, 3b is sucked from the passing holes 2b, travelled through the hollow part 2a, and discharge from the end part of the wiper rubber.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper rubber of a wiper device used for wiping a glass window of an automobile or the like, and more particularly to one wiper rubber having two edge portions. .

[0002]

2. Description of the Related Art Conventionally, a known wiper device has been used as a device for wiping a window glass of an automobile or the like.
In order to enhance the wiping effect, for example, as shown in Japanese Utility Model Laid-Open No. 63-129660 and Japanese Utility Model Laid-Open No. 6-37024, two wires are attached to the tip of one wiper rubber.
There was one in which two wiping blades (edge portions) were formed.

FIG. 3 is a sectional view showing the structure of such a wiper rubber. In the figure, 20 is a conventional wiper rubber, 21 is a base portion that engages with a wiper blade 30,
22a and 21b are provided to be connected to the base portion 21, and the tip portions thereof are edge portions that come into contact with the glass surface. The two edge portions 22a and 21b are parallel to each other and the base portion 2 is provided.
1 is formed along the longitudinal direction.

By using such a wiper rubber, it is possible to wipe off the unwiped portion on one side even at the other edge, so that the wiping effect can be expected to be improved and the shape of the base portion of the wiper rubber can be improved. Since it has a conventional shape, it is not necessary to use a dedicated blade, and there is an effect that compatibility with conventional products can be maintained.

[0005]

The conventional wiper rubber is constructed as described above, and it is possible to improve the wiping effect while maintaining compatibility with the conventional product. It is difficult to remove the water drops that have entered between the two edges, and in the case of heavy rain or the like, water may accumulate between the edges, and the wiping effect by the two edges cannot be expected sufficiently.

The present invention has been made in order to solve the above problems, and provides a wiper rubber in which a single wiper rubber has a plurality of edges, in which water drops hardly remain between the edges. The purpose is to

[0007]

A wiper rubber according to the present invention is formed integrally with a base portion that engages with a wiper blade, and a hollow pipe-shaped main body portion having both ends opened, and the pipe-shaped main body portion. And a plurality of through holes provided in the pipe-shaped main body portion located between the two strip-shaped body portions integrally formed with the strip-shaped body portion and parallel to each other on the opposite side to the base portion. And have.

[0008]

According to the present invention, when air blows on the end of the hollow pipe-shaped main body, air flows in the cavity of the pipe-shaped main body, and the water accumulated between the strip-shaped bodies is swollen. It is sucked into the cavity through the through hole formed in the pipe-shaped main body portion between the body portions, moved by the flow of the air, and discharged from the end portion of the pipe-shaped main body portion.

[0009]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 10 is a wiper rubber, 1 is a base part, and here, an example of a shape that can be engaged with a mounting part of a conventional wiper blade is shown. Reference numeral 2 is a pipe portion formed continuously with the base portion 1, and has a hollow portion 2a having an inner diameter of about 8 mm therein. 3a,
Reference numeral 3b denotes two edge portions formed on the opposite side of the pipe portion 2 from the base portion 1 so as to be parallel to each other along the longitudinal direction of the pipe portion 2. The pipe portion 2 located between the edge portions 3a and 3b is formed with through holes 2b having an inner diameter of about 2 mm at equal intervals.

Next, the function and effect will be described. Figure 2 (a)
In the figure, 4 indicates a front window of the automobile, and a wiper device 5 including a wiper arm, a wiper blade, a wiper rubber and the like is attached to a lower side of the front window 4. FIG. 2B shows a state in the vicinity of the wiper rubber 10 that is in contact with and sliding on the glass window 4, and here, it is assumed that the front side of the paper surface is located below the glass window 4.

While the vehicle is traveling, the wind is mainly applied to the front window 4 from the front side. This wind causes air to flow from the lower end portion of the wiper rubber 10 shown in FIG. 2 (c), and at the upper end portion, the wind hits the opening surface laterally, so that the air is sucked out from the cavity 2a, In the hollow portion 2a of the wiper rubber 10, one-way air flow shown by a dotted arrow is formed. As a result, FIG.
As shown in (b), the water droplet 6 existing between the edges 3a and 3b is sucked into the cavity 2a through the through hole 2b, and the cavity 2
The wiper rubber 10 is discharged from the upper end of the wiper rubber 10 in accordance with the flow of air in a. As a result, a sufficient wiping effect can be obtained without water remaining between the two edges 3a and 3b even when the amount of rainfall is large.

Further, since there is a hollow pipe portion 2 between the base portion 1 and the edge portions 3a and 3b, even if the glass has a large curvature or the glass having a relatively large change in curvature, the pipe portion 2 Due to the elastic deformation, the edge portions 3a and 3b can surely come into contact with the glass surface to prevent moisture from being left unwiped.

[0013]

As described above, according to the wiper rubber of the present invention, the wiper rubber is integrally formed with the base portion that engages with the wiper blade, and the hollow pipe-shaped main body having both ends opened. And two strip-shaped body portions formed integrally with the pipe-shaped main body portion and parallel to each other on the side opposite to the base portion, and located between the strip-shaped body portions. Since a plurality of through-holes are formed in the pipe-shaped main body, air flow occurs in the cavity of the pipe-shaped main body due to running of the vehicle, and water droplets existing between the two strip-shaped body portions are It is sucked into the cavity of the pipe-shaped main body through the through hole and discharged from the end of the pipe-shaped main body along the flow of the air. Even when there is a large amount of rain, the wiper wiping effect can be sufficiently obtained. be able to. Further, since the hollow pipe-shaped main body exists between the wiper blade and the edge portion, even if the glass has a large curvature or the glass with a relatively large change in curvature, the pipe-shaped main body is elastically deformed. As a result, the edge portion surely comes into contact with the glass surface, and there is an effect that it is possible to prevent unwiping of water and the like.

[Brief description of drawings]

FIG. 1 is a view showing a cross section and an edge side of a wiper rubber as an upper surface according to an embodiment of the present invention.

FIG. 2 is a view for explaining an action when the wiper rubber is used.

FIG. 3 is a diagram for explaining a configuration of a conventional wiper rubber having two edge portions.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 base part, 2 pipe part, 2a cavity part, 2b through hole, 3a, 3b edge part, 4 front window, 5
Wiper device, 6 water drops

Claims (1)

[Claims] 1. A pipe-shaped main body formed in the shape of a pipe with both ends open, a base formed integrally with the pipe-shaped main body and engaged and held by a wiper blade, and the pipe-shaped main body. Two strip-shaped body portions that are integrally provided in parallel with each other on the opposite side of the base portion and are in contact with the glass surface of the vehicle, and the pipe-shaped body portion that is located between the two strip-shaped body portions. And a plurality of through holes formed therein.